Murugan has a rivalry towards tigers from childhood. From childhood he gets trained to hunt tigers,which are danger to villagers. Now he is Pulimurugan, but he has to face the tigers as well as the dangerous humans, as he is forced to move out of forest. This forms the rest of the story.
A man, surrounded by birds, hangs himself to death at a cell tower. Elsewhere, the scientist Vaseegaran introduces Nila, his new humanoid robot, to a group of students. A little later, a student’s smartphone starts flying all on a sudden, exhibiting avian characteristics. Before long, cell phones all over Chennai begin to fly away, leaving the city in chaos. At an emergency council meeting initiated by the government, Vaseegaran enunciates that it is beyond conventional science to fight what he considers a fifth force, and proposes reinstating Chitti, which was dismantled in 2010. But Dhinendra Bohra, who lost his father, Professor Bohra, to Chitti’s anger,[a] opposes, and the council decides to seek help from the military, thereby vetoing Vaseegaran’s proposal.
The growing stream of cell phones leave havoc in its path, killing a mobile phone wholesaler Jayanth Kumar, a transmission tower owner Ranjit Lulla and the state’s telecom minister Vaira Moorthy. To prevent further damage, S. Vijay Kumar, the Home Minister, unofficially gives Vaseegaran permission to rebuild Chitti. Chitti traces the mobile phones, which have taken the form of a giant crow, and they fight, during which Chitti’s battery power is depleted and it starts searching for a power source amongst three huge signal transmitters. To Chitti’s surprise, the crow is unable to penetrate the field of transmitters and suffers damage while attempting to do so.
Sami Srinivasan (Srikanth), a Brahmin boy, and his friend Karunakaran (Vishnu) grow up in the Royapuram slums and attend the same school. Karuna is a rough and tough boy, but Sami is bit naive. They are close buddies. Once, they see their class teacher Roja (Pooja Umashanker) being brutally murdered before their eyes by a gangster. Dejected at local police not taking any action, Karuna kills the gangster but gets caught by cops. Sami tells the police that Karuna committed the murder. Though both are bailed out of trouble, enmity brews between them. As years roll, hatred increases: Sami is against Karuna. Trouble erupts when Sami loves Karuna’s sister Malar (Poorna). In the meantime, Shruthi (Poonam Bajwa) loves Karuna. What happens between the two forms the rest of the film.
Tik Tik Tik
An asteroid strikes the Ennore neighborhood of Chennai. Astronauts predict that another asteroid will hit India within six days. The R&AW decides to send Vasu (Jayam Ravi), a trained magician and escape artist, along with his team and a team of scientists to get ahold of a missile in a space center, which they plan to use to destroy the asteroid. The military also catches Venkat (Ramesh Thilak) and Appu (Arjunan), two of Vasu’s friends. Vasu, Venkat, and Appu are alerted about the asteroid, and they have to steal a nuclear missile from a Chinese space station. The mission is disguised as a satellite maintenance project. Vasu meets Swathi (Nivetha Pethuraj) and Raguram (Vincent Asokan), two army officials who are going on the mission with them. Vasu, Swathi, Venkat, Appu, and Raguram go on the space shuttle Dhruva-1. Just before launch, Vasu’s speech channel is directed to an unknown voice, which tells Vasu that he has kidnapped his son Ravi (Aarav Ravi), who will die unless Vasu gives the missile to him, and Vasu agrees. While in flight, Vasu goes unconscious, and Swathi and Venkat take him to the sick bay. There, Vasu wakes up and goes into the wire chamber to cut the wire that controls the liquid hydrogen fuel tank. Vasu actually faked going unconscious due to directions from the unknown voice. Vasu cuts the wire, and the fuel tank loses much of its fuel.